What should I do about a toothache that radiates to a headache on one side of the head?

Toothache accompanied by a headache on one side of the head may be caused by radiating pain due to dental inflammations such as pulpitis. For this condition, the following measures can be taken: 1. **Medication**: Under a doctor's guidance, take antibiotic medications such as Amoxicillin Capsules or Artificial Cow-bezoar Metronidazole Capsules to alleviate inflammation caused by bacterial infection. If the pain is severe, non-steroidal anti-inflammatory drugs such as Ibuprofen Sustained-release Capsules can be taken orally. 2. **Surgical Treatment**: For pulpitis caused by dental caries, it is recommended to be admitted to a hospital promptly for pulp opening and drainage, as well as root canal treatment, to remove inflamed tissues and fill dental defects. 3. **Daily Care**: Maintain good oral hygiene by brushing teeth regularly, using dental floss to clean between teeth, avoiding spicy and irritating foods, and eating more fresh fruits and vegetables. If you have any concerns, it is recommended to seek timely medical advice for diagnosis and treatment by a qualified doctor.